Gluing machine



May 5, 1931.- 8, PR CE 1,804,365

. GLUING MACHI NE Filed Sept. 14, 1928 2 Sheets-Sheet l 4 WITNESSES "1INVENTOR dharl es" S. Price,

a: 1 A. 5 Q (0 W BY i0 9 i0 ATTORNEYS.

May 5, 1931.

C. 8. PRICE GLUING MACHINE 2 Sheets-Sheet 2 Filed Sept. 14, 1928 FIG E527 .l 20 M42 (H766 FIGJZ A INVENTOR Char-Zes S. Price.

ATTORNEYS. Y

FNESSES I I 2/ 27 W l Patented May 5 1931 rATss mire CHARLES s. PRICE,OF BETHLEHEM, PENNSYLVANIA, AssIGN on r L. EGRAMMES &

sons, INQ, or ALLENT'OWN, PENNSYLVANIA, A CORPORATION or MARYLAND-GLUING MACHINE Application filed September 14, 1928. Serial No.306,085.'

This invention relates to machines for applying adhesive to the surfaceof sheet mate rial such as labels, paper box blanks, paper commodatediffering service conditions.

The foregoing and other features of ad vantage are secured in themachine herein illustrated and described, while the appended claimsparticularly point out the alleged features of novelty.

In the drawings Fig. I is a perspective view of my novel manuallyoperable gluing machine, with a cover element removed to better discloseotherwise hidden details.

I Fig. II is a sectional, view, taken approximately'as' indicated by thearrowed plane designated II-II in Fig. I.

Fig. III is a top plan View of the machine, with parts broken away toclearly illustrate the drive mechanism. I

IV is a front elevation with a fragment broken away to show a portion ofthe feed device in full lines.

Fig. V is a detail illustrationof a modified form of feed device.

Fig. VI isasectional View similar to Fig. II, but incorporating amodified form of picker means, hereinafter fully explained; and v Fig.VII is a fragmentary plan view of the picker means illustrated in thepreceding figure.

Referring more in detail to the drawings, my novel gluing machinecomprises a rectangularly configured container or tank 8, having adished bottom 9 provided with feet 10.

This container or tank 8 is formed with a pocket 11', set aparttherefrom by an integral T partition 12, and opposed oflfsets 13 havingvertically directed slots 14, for a purpose later on explained.Journaledtransversely in the container 8 is a hollow drum or gluing roll15 which-is journaled for free rotation by means of a bearing screw 16at one end, and a boss 17 at the other freely passing through a cut out18 of the partition 12, and fitted with a removable crank handle 19.Integral with, or securely attached to, the gluing roll boss 17 is aspur gear 20 meshing with a gear 21 on the adjacent end of the feeddevice, comprehensively designated 22. This feed device 22' comprises aspindle 23 having reduced ends, adapted for free rotation in thevertically directed slots 14: of the container offsets 13, that is,conveniently, fitted with a hard Wood or other appropriateroll 24:.having spaced grooves 25 receiving round-section rubber bands 26,v whichlatter project beyond the perimetric surface of said roll, as clearlyshown in Figs. I and IV. q

Referring now to Figs. V and VI, which show a modified form of the feeddevice 22, it will be seen the same comprises a shaft 27, bearing aseries of V-grooved disks 28 maintained' in proper relation by means ofintervening spacers 29, which are securely clamped together through themedium of a cotter pin 30 at one end, with a lock sleeve 3-1 and nut 32at the other end. Obviously the round section rubber bands 26 aresnapped into the V-grooves of the disks 28, and it will be apparentthat, by releasing the lock' sleeve 31, said disks can be removed forcleaning or renewal of the rubber bands 26, while their number may bevaried to accommodat'e different service requirements. Attention isparticularly drawn to the fact that" the feed device 22 may becharacterized as of the gravity type in that it acts upon the ma-'terial fed into themachine by its own weight, and consequent slightcompressio-n'of the rubber bands 26; also, that there is nopull exertedon said material by the roll 15, other than the 1 contact influence ofthe applied glue, which is promptly released by the picker or strippingmeans, later on fully described.

Freely pivoted on feed device spindle;

22 is a pawl33 adapted to engage the teeth of the spur gear 20, therebypreventing back motion of the gluing roll 15, in an obvious manner, aswill be best appreciated from Fig. II.

,The means for evenly spreading or distributing the glue, conventionally1ndicated 34 in Figs. II and VI, comprises a horizontally-directedscraper-bar 35 having vertically directed terminal portions 36, pivotedat one end on a pin 37 Fig. III integral with or fitted to an upstandingprojection 38 of the partition 12, and at the other end to the reducedterminal of a screw 39, later on again referred to. Co-operative withthe scraperbar 35, through the medium of a T-shaped end 40 entering anaperture 41 therein, is a manipulator 42 havingits other end angled at43 and forked for engagement with the grooved inner end 44 of anadjusting screw 45. Thus it will be understood by turning the screw 45,in the proper direction, that the scraper-bar 35 will be rocked on thepivots 37, 39 towardor away from-the gluing roll 15 and the thickness ofthe film of glue applied by said roll thereby adjusted.

46 is the feed table or plate which is formed along the outer edge witha curved lip 47 that abuts the complementarily sectioned flange 48 ofthe tank 8, spring-tongues 49 serving to clamp the same in position bysnapping the underside of the relatively reduced part of said flange at50, in an obvious manner. The feed plate 46 is downwardly inclined alongits inner portion and slotted to provide a series of tongues 51 withtheir ends preferably rounded; which, when said plate is in position,intervene the rubber bands 26 and extend into close proximity with theperipheral surface of the gluing roll 15. It is also to be noted thatthe terminal tongues 51 of the series freely pass between the verticalextensions 36 of the scraper-bar 35, and thereby serve to maintain thesame engaged with the pivots 37, 39. In conjunction with the improvedgluing machine, I provide a novel picker or strip ping attachment whichfunctions to promptly detach or release the sheet material from the roll15, as fast as it is glued. This attachment comprises a spindle or rod52 having diametrie holes 53 near its ends, whereby it is seated onshouldered pins 54, secured in the tankwalls. Freely supported by therod 52 are a series of comparatively-thin icker or stripping elements55, of the conguration best shown in Fig. II, which are maintained inspaced relation by intervening and end sleeves 56, 57, and 58, respectively; the latter two being secured to the rod 52 bycotter pins 59, inan'obvious manner. Attention, 'however,is directed to the fact that thestripper elements 55 are afforded a small degree of lateral clearancewith respect to the sleeves 58; so that, as the gluing roll 15 isrotated, they may slightly vibrate laterally of the machine and therebyprevent the formation of un-glued lines on the material as it leavessaid gluing roll.

Instead of the stripper device described in the preceding paragraph Imay employ the means shown by Figs. VI and VII, which consists of aplate 60 having a rolled edge and spring tongues 61, analagous to thoseset forth in connection with the feed plate 46, for gripping the tankflange 62 at the back of the machine. This plate 60 is convenientlyprovided along its inner edge with spaced fingers 63 that are slightlyinclined downwards and formed with upwardly angled picker or, strippingtongues 64 which barely touch or impinge the gluing roll 15,asconventionally indicated in Fig. VI by the dark shade line, and whichfunction to remove the sheet material from said roll, in the mannerhereinbefore explained. It is to be noted, however, that the justdescribed form of stripper means is substantially rigid, and betteradapted to the gluing of the heavier materials;

65 is a cover plate of arcuate cross-section that is provided with endprojections or flanges 66, having slots 67 therein, whereby said plateis mounted over the feed device 22, and clamped to the oifsets 13,through the medium of the screw 39 and a second screw 68, in an obviousmanner.

From the foregoing it is thought the use and operation of my improvedgluing machine will be well understood, but it may be here remarked thatthe feed plate 46 is first removed and the tank 8 filled with glue towithin about one-quarter of an inch below the spreader or scraper-barThe screw 45 is next adjust-ed until the bar 35 is positioned relativeto the applying roll 15, so that the latter carries up a uniformly thinfilm of glue. The feed plate 46 is replaced and. properly centered sothat it does not bind either of the scraper-bar end extensions 36,whereupon the machine is ready for opera tion, by consecutively placingthe elements to be glued on the plate 46, and from which they are drawnby the feed device 22 and pass over the roll 15, with subsequent removaltherefrom by the strippers 55, or 64.

IVhen it is desired to cleansethe machine, the cover plate 65 is removedby slackening the screws 39 and 68. The feed device 22 is then liftedfrom its bearings, the stripper means 55 or 64 bodily removed, while thehandle 19 and bearing screw 16 are withdrawn, whereupon the gluing drum15 can be lifted out and washed. Obviously, a reverse sequence ofoperations takes place in re assembling the machine; and while I haveparticularly described the illustrated embodiments somewhatspecifically, it is to be understood that structural changes orvariations in the relative aggroupment of the several co-operative meansmay be resorted to without transgressing the scope of the appendedclaims.

Having thus described my invention, What I claim is: r

l. The comblnation in a machine of the type described of a container foradhesive roll driven by the applicator drum gear; and

vibratory stripper means, removable as a unit, engaging the applicatordrum to separate material therefrom as rapidly as it is coated withadhesive.

2. The combination in a machine of the type described of a'container foradhesive embodying an integrally-formed partitionedotf pocket; amanually-rotatable applicator drum'journaled in the container with adrive gear located in the pocket; adjustable means comprising a pivotedbail-like scraper-bar and a manipulator link having a T-shaped endengaged therewitl1,said link having its other end angled-and-forked formovement by an adjuster screw; afeeding-in plate having tonguesprojecting into proximity with said drum, and a non-contactingco-operative circumferentially-ribbed feed roll driven by the applicatordrum gear; and vibratory stripper means, removable as a unit, engagingthe applicator drum to separate material therefrom as rapidly as it iscoated with adhesive.

3. The combination in a machine of the type described of a container foradhesive embodying an integrally-formedpartitionedofi pocket; amanually-rotatable applicator drum journaled in the container with adriving gear located in the pocket; a pivoted baillike scraper-barand'adjus'table manipulator link adapted to regulate the thickness ofadhesive applied by said drum; a plate having slightly inclined tongues,with their free ends rounded, projecting into proximity with theapplicator drum, and a roll having spaced resilient annulico-operatively intervening said tongues, to feed-in the material forapplication of adhesive thereto; and vibratory stripper means, removableas a unit, engaging the applicator drum to separate material therefromas rapidly as it is coated with adhesive.

4:. The combination in a machine of the type described of a containerfor adhesive embodying an integrally-formed partitionedofi pocket; amanually-rotatable applicator drum journaled in the container with adriving gear located in thepocket apivoted' baila like scraper-bar andadjustable; angled manipulator link adapted. to regulate the thicknessof adhesive applied by said drum; a plate embodyingslightly'inclinedtongues, with theirsfree ends rounded, projecting into proximity withthe applicator drum, and a rollincorporating spaced grooves withroundseetion rubber-bands cosoperatively intervening said tongues, tofeed-in material for application of adhesive thereto; and vibratorystripper means, removable as a unit, engaging the applicator drum toseparate material therefrom ;as rapidly as it is coated with adhesive. v

5-. The combination in a machine of the type described of a containerfor adhesivev embodying an integrally-formed partitionedotf pocket; amanually-rotatable applicator drum j ournaledin the container with adriving gear located in the pocket ;-a.pivoted bail-.

likescraper-bar and adjustableangled manipulator link adapted toregulate the thick ness of adhesive applied by said drum; a plateembodying slightly inclined tongues, with their free. ends rounded,projecting into proximity with the applicator drum, and a feed deviceembodying a series of peripherallygrooved disks with fittedround-section rubber-bands co-operatively intervening said tongues tofeed-in material for application of adhesive thereto; and vibratorystripper means, removable as a unit, engaging the applicator drum toseparate material therefrom as rapidly as it is coated with adhesive.

6. The'combination in a machine of the type described of a container foradhesive including an integrally-formed partitionedofl' pocket; amanually-rotatable applicator drum j ournaled in the container with adrive gear'located in the. pocket; adjustable means adapted to regulatethe thickness of adhesive applied by said drum; non-contacting feedmeans driven by the applicator gear; and vibratory strippermeansremovable as a unit-comprising a stationary element supportingcomparatively thin fingers having a similar degree of lateral play,disposed edgeon relative to the applicator drum, and cooperativetherewith, to remove the material as rapidly as it is coated withadhesive.

7. The combination in a machine of the type described of a container foradhesive including an integrally-formed partitioned-oft pocket ;'amanually-rotatable applicator drum 7 j ournalled in the container with adrive gear located in the pocket; adjustable means adapted to regulatethe thickness of adhesive applied by saiddrum; non-contacting feed meansdriven by the applicator gear; and vibratory stripper meansremovable asa unitcomprising a stationary member supporting spaced pawl-like fingershaving a small degree of lateral play, the tips whereof engage theapplicator drum and serve to lift material therefrom as rapidly as it iscoated with the adhesive.

8. The combination in a machine of the type described of a container foradhesive and embodying a partitioned-off pocket; a manually-rotatabledrum journaled in the container with a drive gear located in the pocket;adjustable means adapted to regulate the thickness of adhesive appliedby said drum; a feeding-in plate having tongues projecting intoproximity with said drum, and a non-contacting co-operativecircumferentially-ribbed feed roll driven by the applicatorgear;-slightly vibratory stripper means removable as a unitengagin-g theapplicator drum to separate material therefrom as rapidly as it iscoated with adhesive; a removable arcuate section cover mounted over thefeed device aforesaid; and means whereby the machine may-be operated andrestrained against back motion.

In testimony whereof, I have hereunto signed my name at Allentown,county of Lehigh, Pennsylvania, this 4th day of September, 1928.

CHARLES S. PRICE.

